March 2015 - Pharo-users - lists.pharo.org

We are so lucky!
by Sean P. DeNigris March 12, 2015

March 12, 2015

Problem: Scanning a bi-fold pamphlet produced a PDF with two non-contiguous pages per scanned image. After converting each page of the PDF into a png, compare the following approaches to split them in half: Assembler... I mean Write-Only... I mean Shell Solution [1]: #!/bin/sh if [ ! -e even-odd ]; then mkdir even-odd; fi first="`ls -1 *.jpg | head -n1`" let "halfwidth=`gm identify -format '%w \n' $first`/2" width="`gm identify -format '%w \n' $first`" height="`gm identify -format '%h \n' $first`" for FILE in *.jpg ; do convert -crop "$halfwidth"x"$height"+0+0 "$FILE" "$FILE-A.jpg" ; mv `ls *.jpg | grep A` even-odd ; convert -crop "$width"x"$height"+"$halfwidth"+0 "$FILE" "$FILE-B.jpg" && mv `ls *.jpg | grep B` even-odd done ; Smalltalk solution: PsProcessPageImages>>#splitPages imageFiles do: [ :file | self currentFile: file. self splitCurrentImage. index := self index + 1 ]. PsProcessPageImages>>#splitCurrentImage self index odd ifTrue: [ self rightFirstSplitCurrentImage ] ifFalse: [ self leftFirstSplitCurrentImage ] etc... One fun change was: width="`gm identify -format '%w \n' $first`" which became: imageForm width "oh yeah, we can treat the image as a real object and just ask it what its width is!" [1] http://ubuntuforums.org/showthread.php?t=1665621 ----- Cheers, Sean -- View this message in context: http://forum.world.st/We-are-so-lucky-tp4811504.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

1 0

Why `aFileReference asString = aFileReference fullName` is false?
by Sebastian Sastre March 12, 2015

March 12, 2015

A frequent thing to do is to work with files, so their paths. Take the image directory for example: `FileLocator imageDirectory resolve asString` 1) Whatâs the reason to make `aFileReference asString` to be different to what `aFileReference fullName` answers? 2) Whatâs the practical use of the current answer of `aFileReference asString`?

8 16

Native language support
by Nick Doodka March 12, 2015

March 12, 2015

Hi all. I would like to use Pharo in my native language (Ukrainian in my case or Cyrillic), but I cannot enter some capital letters to Workspace / System Browser because it's fails on letters: CapsLock or Shift+<Keys> -> [~YGJK"V]. That behavior take place only in Pharo ver. 3 and 4. In Pharo 2.0 all keys working good! What is wrong? Platform - Windows XP

8 13

Pillar parser rewrite: PetitParser or not?
by Damien Cassou March 12, 2015

March 12, 2015

Hi, The current pillar parser has several problems: - it is hard to understand and change - it discards input locations I think a refactor or rewrite is necessary. What are the pros and cons of using PetitParser to do that? Best

7 6

using spotter to navigate through the file system
by Tudor Girba March 12, 2015

March 12, 2015

Hi, Here is a little post that describes how you can use GTSpotter to navigate through the file system: http://www.humane-assessment.com/blog/searching-file-system-with-gtspotter/ If you combine this with the GTInspector ability of allowing you interact with the file references, you get a pretty powerful tool: http://www.humane-assessment.com/blog/browsing-files-with-gtinspector/ This is probably the simplest 3-minute demo you can give to a newcomer :). Cheers, Doru -- www.tudorgirba.com "Every thing has its own flow"

2 4

[ANN] TODO List of Requested Features
by Damien Cassou March 11, 2015

March 11, 2015

I've just written a list of nice features we miss in Pillar: http://www.smalltalkhub.com/#!/~Pier/Pillar Please contribute by either making the list longer or, and I would prefer that, making it shorter.

1 0

GTTools and Mongo
by Torsten Bergmann March 11, 2015

March 11, 2015

After loading MongoTalk or VoyageMongo in Pharo 4 you can additionally load the package: "Mongo-Pharo-Tools" from mongotalk repo on SmalltalkHub. This way you can browse your mongo database (collections and documents) directly from within Pharo using GTInspector tools (see screenshot). Just by adding two methods - nice! Bye T.

7 12

Jenkins build trigger
by Christophe Demarey March 11, 2015

March 11, 2015

Thanks to Esteban add-on on Smalltalkhub, it is now possible to notify Jenkins that there is a new package published for your project. What we do for now is to poll very often (each minute) smalltalkub to check if there is an update. It is a big waste of resources! Now we can do better! It would be very nice to update your jobs to now use the commit hook. Here is the way to go: go to your job configuration on Jenkins In the build triggers section, enable Trigger builds remotely (e.g., from scripts) and choose an authentication token. disable [URLTrigger] - Poll with a URL go to smalltalkhub, on your project settings page Fill in the commit hook url field with https://ci.inria.fr/pharo-contribution/buildByToken/build?job=JOBNAME&token… by replacing JOBNAME and TOKEN by the Jenkins job name and the token chosen. In the end, the build is now triggered immediately after the commit (no more delay). Christophe

1 0

stdout on windows
by Torsten Bergmann March 10, 2015

March 10, 2015

Esteban wrote: >you cannot. >and the reason is deeply inside the inners of the vm implementation and the windows architecture not true as to my knowledge even a windows app can get a handle to stdout (or set one) and this is not dependent if you build it as consol or ui app. you can even create own consoles if you like, ... If I remember correctly from ST/MT and MSDN getting a handle to stdio means only to call "GetStdHandle" with STD_OUTPUT_HANDLE. So the basic reason is that stdout support was not implemented for Windows because it is different than Unix flavours and nobody seemed to care so far. Therefore Pharo on Windows uses a workaround (file) instead of completing the handling for Windows. Maybe it was the lack of time or knowledge or that NB was not ready yet. Dont know. I already have some initial support for consoles and reading/writing to it in the OSWindows project that could be loaded from config browser. This could be a base. So it is possible but as ever ... time and resources. Bye T.

2 1

Any framework to create a blog over seaside?
by Julien Delplanque March 10, 2015

March 10, 2015

Hi, I wonder if there are existing projects/frameworks to create a blog in pharo? If there are I suppose they use seaside? Regards, Julien

7 10